Gregory Scallon, P.A.
Physician Assistant · Phoenix, AZ
Gregory Scallon, P.A. is a physician assistant with a practice address in Phoenix, Arizona, and NPI 1891722302, issued on Jun 28, 2006. Check the license (Arizona 2563, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Scallon
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 2563 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3411 N 5TH Ave Ste 209, Phoenix, AZ 85013
- Phone
- (602) 789-0344
- Enumerated
- Jun 28, 2006
- Record last updated
- Jan 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (602) 789-8389
- Medicaid ID
- 634370 AZ
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,666 in Arizona → Look up another NPI →
Also registered at 3411 N 5TH Ave Ste 209
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Scallon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 2563Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average physician assistant in 2024
1,007 Medicare Part D claims for 153 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 70 claims were for opioids.
Most prescribed
- Gabapentin47 claims
- Amlodipine Besylate41 claims
- Furosemide31 claims
- Donepezil Hcl28 claims
- Metformin Hcl27 claims
- Tradjenta26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gregory Scallon among 3,666 physician assistant records in Arizona
Gregory Scallon, P.A. is one of 3,666 physician assistant records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 84% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2018 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
923 physician assistant records list a practice address in Phoenix
They are 923 of the 31,399 NPPES records with a practice address in Phoenix, and 3,666 physician assistant records in Arizona.
All 3,666 in Arizona → Every provider in Phoenix → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Sheri Agran, PA-CPhoenix, AZ 850131548331341
- Laura Andersen, PACPhoenix, AZ 850131710061171
- Riki Davidson, PA-CPhoenix, AZ 850131194775981
- Rafael Garcia, PA-CPhoenix, AZ 850131144317637
- Melissa Hoover, PAPhoenix, AZ 850131992789135
- Jan Hughes, NNPPhoenix, AZ 850131184643892
- Bryan Lee, PA-CPhoenix, AZ 850131205951365
- Beth Lockhart, PACPhoenix, AZ 850131871681023
Common questions
What is Gregory Scallon, P.A.'s NPI number?
Gregory Scallon, P.A.'s National Provider Identifier (NPI) is 1891722302, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Scallon, P.A. located?
The NPPES record lists a practice address at 3411 N 5TH Ave Ste 209, Phoenix, AZ, 85013. Phone: (602) 789-0344. Providers update this record themselves, so call before visiting.
How can I verify Gregory Scallon, P.A.'s license?
NPPES lists Arizona license number 2563, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Scallon, P.A. prescribe under Medicare Part D?
In 2024, Gregory Scallon, P.A. had 1,007 Medicare Part D claims for 153 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.